Oh wait.
Why should the average person need to understand the jargon of an economics expert? The average person should be able to buy bread and shelter. Isn't that the understanding they need?
Just like, why should the average person need to understand the different types of ozone depleting gasses? The average person should be able to breathe clean air and live in a city/state/nation that's not literally being swallowed by the ocean.
Does the average person need to understand what a software engineer means when they talk about concurrent asynchronous calls kept in check by a byzantine generals algorithm to ensure consistency across nodes?
I'm sure if the average person spent 100 hours studying economics they could grasp the basic concepts quite firmly.
But, quite literally, the entire point of having experts in a society due to the advent of specialization stemming from the agricultural revolution is so that people can do and learn different things and the sum of the parts can be greater than the whole.
If you want to learn more about economics than go do it, but attacking an entire field because you can't be bothered to learn its particular jargon seems shortsighted at best.
No one's saying "trust everything blindly", either.
Many of the "basic concepts" of economics are not empirically proven. This is not newtonian physics; it is a vague social science.
The economist will tell you that "the jury is still out on QE". http://www.economist.com/blogs/economist-explains/2015/03/ec...
Many of the fed workers who did the QE admit that it was largely ineffectual other than inflating bank profits. https://www.wsj.com/articles/qe-the-greatest-backdoor-bailou...
Money printing has occurred up until now because there was no viable alternative to government issued fiat currency. Satoshi Nakamoto changed that.
Things like power outages making it impossible to perform transactions (although for some people that'd be true with credit cards) is another big issue.
Not that there's not a lot of neat stuff to the block chain and crypto currencies, and I think ethereum is really neat. I'm not anti cryptocurrency, but I'd say it remains to be seen if it's a viable alternative to fiat currencies.
If your statement was correct, one could easily extend it and say that Internet is consuming a whole lot of power for the meaningless purpose of powering the switches and routers that make up the backbone of the network. That all that energy goes to waste to have some machines standing somewhere in a datacenter that noone sees.
Obviously, those machines transform the energy into practical utility, and so do ASICs calculating Bitcoin hashes.